CN105661730B - The helmet with the sliding facilitator being arranged at energy-absorbing layer - Google Patents

The helmet with the sliding facilitator being arranged at energy-absorbing layer Download PDF

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Publication number
CN105661730B
CN105661730B CN201610084938.5A CN201610084938A CN105661730B CN 105661730 B CN105661730 B CN 105661730B CN 201610084938 A CN201610084938 A CN 201610084938A CN 105661730 B CN105661730 B CN 105661730B
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CN
China
Prior art keywords
energy
absorbing layer
peripheral device
helmet
attached peripheral
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Application number
CN201610084938.5A
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Chinese (zh)
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CN105661730A (en
Inventor
P·哈尔丁
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Mips AB
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Mips AB
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Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
    • A42B3/063—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures
    • A42B3/064—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures with relative movement between layers
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/062—Impact-absorbing shells, e.g. of crash helmets with reinforcing means
    • A42B3/063—Impact-absorbing shells, e.g. of crash helmets with reinforcing means using layered structures
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets
    • A42B3/066—Impact-absorbing shells, e.g. of crash helmets specially adapted for cycling helmets, e.g. for soft shelled helmets
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/121—Cushioning devices with at least one layer or pad containing a fluid
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/12—Cushioning devices
    • A42B3/125—Cushioning devices with a padded structure, e.g. foam
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/14—Suspension devices
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/14—Suspension devices
    • A42B3/142—Suspension devices with restraining or stabilizing means, e.g. nape straps
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/14—Suspension devices
    • A42B3/145—Size adjustment devices
    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/10—Linings
    • A42B3/14—Suspension devices
    • A42B3/147—Anchoring means

Landscapes

  • Helmets And Other Head Coverings (AREA)

Abstract

The present invention provides a kind of helmets including energy-absorbing layer (2) and sliding facilitator (5).The sliding facilitator setting is on the inside of the energy-absorbing layer (2).The present invention also provides a kind of methods that manufacture includes the helmet of sliding facilitator.The method includes the steps: energy-absorbing layer is provided in a mold, and the sliding facilitator for contacting the energy-absorbing layer is provided.

Description

The helmet with the sliding facilitator being arranged at energy-absorbing layer
The application be the applying date be on May 3rd, 2011, application No. is 201180022948.1, it is entitled " with cloth Set the helmet of the sliding facilitator at energy-absorbing layer " divisional application.
Technical field
Present invention relates in general to a kind of helmet, which includes energy-absorbing layer (any external shell of with or without Body) and the sliding facilitator (sliding facilitator) on the inside of the energy-absorbing layer is set.
Background technique
Injured to avoid or reduce skull and brain, people need in many activities using the helmet.Most helmets are by hard External shell (logical common plastics or composite material manufacture) and the energy-absorbing layer of referred to as lining form.Nowadays, protectiveness head Helmet must be designed to meet specific legal requirements, this in particular under specific crash by the center of gravity of brain generate most greatly Speed.It usually will do it some tests, in testing, so-called dummy's skull equipped with the helmet is by headward radial direction punching It hits.This facilitate for skull radial impact in terms of with good energy absorption capability the modern helmet, however for The energy absorption of other crash directions is unsatisfactory.
In the case where radial impact, head will be accelerated with translational motion, generate linear acceleration.Translatory acceleration will Lead to the compressing or wear damage of skull fraction and/or brain tissue.However counted according to injury, pure radial impact is seldom See.
On the other hand, the pure tangential shock for only making head generate angular acceleration is also rarely found.
The most common impact-type is oblique impact, is that synchronization acts on the radial force on head and the group of tangential force It closes, causes (for example) cerebral concussion.Oblique impact generates the translatory acceleration and rotation acceleration of brain.Rotation acceleration makes brain exist It is rotated in skull, body tissue and the brain itself that brain is connected to skull is damaged.
On the one hand the example for rotating injury is subdural hematoma (SDH) --- bleeding caused by angiorrhoxis, and another party Face is dispersivity axonal injury (DAI) --- this may be summarized to be the nerve fibre as caused by the high shear deformation in brain tissue Excessive tensile.The characteristics of according to rotatory force, such as duration, amplitude and increase rate, cause SDH or DAI, or concurrent SDH and DAI.In general, SDH is appeared in short-term and under the impact events of intensity greatly, and DAI appears in the acceleration duration Under the longer and wider array of impact events of distribution.In view of these phenomenons so as to providing good protection right and wrong for skull and brain It is often important.
Head has natural protection system, which uses scalp, hard skull and the celiolymph under skull To buffer these power.In impact process, slided by compression and on skull, scalp and celiolymph play rotating oscillation damping device Effect.Nowadays the most helmets used do not provide the protection for being directed to rotation injury.
Such as bicycle, ride and the important feature of the skiing helmet is, their air circulation very well and has Aerodynamic shape.Modern bicycle helmet is usually the type of in-molded shell, by receiving in forming process Enter thin stiff case and manufactures.The technology allows to produce the shape more more complicated than the helmet of stiff shell and generates bigger Venthole.
Summary of the invention
The invention discloses a kind of helmet, which includes energy-absorbing layer and is arranged on the inside of the energy-absorbing layer Sliding facilitator.
According to one embodiment, the helmet includes attached peripheral device, for the helmet to be attached to the head of wearer.It is described Attached peripheral device is intended at least partly contact at the top of head or skull.Attached peripheral device can also extraly have fastening dress It sets, the size and degree for adjusting and the overhead of wearer is attached.The band or similar device in lower chin portion are not according to herein Helmet embodiment attached peripheral device.
The sliding facilitator is capable of fixing the inside to attached peripheral device and/or energy-absorbing layer, for providing energy-absorbing layer Sliding property between attached peripheral device.
Preferably, the outside of energy-absorbing layer is arranged in external shell.The helmet designed accordingly can be used in-molded Disclosed idea, but can be used for all types of helmets by technology manufacture, for example, stiff shell type the helmet (such as Motorcycle helmet).
According to another embodiment, the attached peripheral device is fixed to energy-absorbing layer and/or outer by least one fixing piece Portion's shell, at least one described fixing piece can be adapted to absorb by deformation elastic, semi-elastic or plastic manner energy and Power.In impact process, energy-absorbing layer plays the role of impact absorbing object and being compressed, and if uses external shell Body will be such that impact energy disperses on shell.Sliding facilitator will allow the sliding between attached peripheral device and energy-absorbing layer, provide A kind of controlled manner that the rotational energy that will be originally transferred to brain absorbs.The rotational energy can be inhaled by frictional heat, energy It receives layer deformation or the deformation of at least one fixing piece or displacement and is absorbed.The rotational energy of absorption, which will reduce, influences turning for brain The amount of dynamic acceleration, thus reduces rotation of the brain in skull.
The fixing piece may include at least one Suspension with first part and second part.The first of Suspension Part can be adapted to be fixed to energy-absorbing layer, and the second part of Suspension can be adapted to be fixed to attached peripheral device.
The sliding facilitator assigns a kind of function of the helmet (sliding property) and can be arranged in a number of different manners.For example, It can be low-friction material, be arranged in attached peripheral device on the surface of energy-absorbing layer or with attached peripheral device in face of energy Amount absorbed layer surface became one, and/or be arranged in energy-absorbing layer on the inner surface of attached peripheral device or with energy The inner surface in face of attached peripheral device of amount absorbed layer becames one.
The present invention also provides a kind of methods that manufacture includes the helmet of sliding facilitator.The method comprising the steps of: mold is provided, Energy-absorbing layer is provided in a mold, and the sliding facilitator of contact energy-absorbing layer is provided.According to one embodiment, this method can To further comprise step: attached peripheral device being fixed in shell, energy-absorbing layer and sliding facilitator using at least one fixing piece At least one.
Sliding facilitator provides a possibility that sliding motion in any direction.Movement is not limited to around specific axis Line.
Note that perhaps a part of of a part of embodiment and any method or method can be with for any embodiment Any way combination.
Detailed description of the invention
Now by exemplary form, the present invention is described with reference to the accompanying drawings, in which:
Fig. 1 shows the sectional view of the helmet according to one embodiment,
Fig. 2 shows sectional view when being worn on wearer's head according to the helmet of one embodiment,
Fig. 3 shows the helmet being worn on wearer's head when by frontal impact,
Fig. 4 shows the helmet being worn on wearer's head when by frontal impact,
Attached peripheral device is illustrated in further detail in Fig. 5,
Fig. 6 shows the optional embodiment of fixing piece,
Fig. 7 shows the optional embodiment of fixing piece,
Fig. 8 shows the optional embodiment of fixing piece,
Fig. 9 shows the optional embodiment of fixing piece,
Figure 10 shows the optional embodiment of fixing piece,
Figure 11 shows the optional embodiment of fixing piece,
Figure 12 shows the optional embodiment of fixing piece,
Figure 13 shows the optional embodiment of fixing piece,
Figure 14 shows the optional embodiment of fixing piece,
Figure 15 shows the optional embodiment of fixing piece,
Figure 16 shows the table of test result,
Figure 17 shows test result figures, and
Figure 18 shows test result figure.
Specific embodiment
The specific descriptions to embodiment are presented below.It will be understood that attached drawing be only intended to illustrate purpose without Range is limited in any way.("above" or "below" such as) is referred to only for as shown in the figure to any of direction as a result, Direction.
One embodiment of protective headgear includes energy-absorbing layer and the rush that is arranged on the inside of the energy-absorbing layer Sliding object.According to one embodiment, the in-molded helmet for being suitble to cycling to use is provided.The helmet includes the excellent of outside Be selected as thin stiff case, which is manufactured by polymer material, such as polycarbonate, ABS, PVC, glass fibre, Aramid, Twaron, carbon fiber or Kevlar.It will also be appreciated that omitting external shell.Energy-absorbing layer, institute are set on the inside of shell Stating energy-absorbing layer can be polymer foams, such as EPS (expanded polystyrene (EPS)), EPP (expanded polypropylene), EPU (hair Steep polyurethane) or other structures (such as class honeycomb).The inside of energy-absorbing layer is arranged in sliding facilitator, and is suitable for opposite It is slided in the energy-absorbing layer or relative to attached peripheral device, the attached peripheral device is set as the helmet being attached to wearer's Head.Attached peripheral device is fixed to energy-absorbing layer and/or shell by fixing piece, the fixing piece be suitable for absorbing impact energy and Power.
Sliding facilitator can be the material with low-friction coefficient, or be coated with low-friction material: it is contemplated that material Example be PTFE, ABS, PVC, PC, nylon, fibrous material.It is slided it is also contemplated that can be realized by the structure of material It is dynamic, such as by the material with fibre structure, so that fiber slides relative to each other.
In impact process, energy-absorbing layer plays the role of impact absorbing object and being compressed, and if uses External shell will be such that impact energy disperses on energy-absorbing layer.Sliding facilitator will allow attached peripheral device and energy-absorbing layer it Between sliding, provide it is a kind of by be transferred to originally brain rotational energy absorb controlled manner.The rotational energy can pass through Frictional heat, energy-absorbing layer deformation or the deformation of at least one fixing piece or displacement and be absorbed.The rotational energy of absorption will Reduce the amount for influencing the rotation acceleration of brain, thus reduces rotation of the brain in skull.Rotation injury (such as subdural hematoma (SDH), angiorrhoxis, cerebral concussion and DAI) risk thus reduce.
Fig. 1 shows the helmet according to one embodiment, and wherein the helmet includes energy-absorbing layer 2.Energy-absorbing layer 2 Outer surface 1 can be arranged with material identical with energy-absorbing layer 2, or be also contemplated that outer surface 1 can be by with The stiff case 1 of the different material manufacture of energy-absorbing layer 2.Sliding facilitator 5 is arranged compared to attached peripheral device 3 in energy-absorbing layer 2 Inside, the setting of attached peripheral device 3 is the attachment for the helmet and wearer's head.Embodiment according to figure 1, sliding facilitator 5 are fixed to energy-absorbing layer 2 or are integrated in energy-absorbing layer 2, however are equally conceivable, and inhale for energy is provided Receive this same purpose of the sliding property between layer 2 and attached peripheral device 3, sliding facilitator 5 be arranged in attached peripheral device 3 or with it is attached Equipment 3 is connect to became one.The helmet of Fig. 1 has multiple ventholes 17, and air-flow is allowed to pass through the helmet.
Attached peripheral device 3 is fixed to energy-absorbing layer 2 and/or external shell 1, institute by four fixing pieces 4a, 4b, 4c and 4d Four fixing pieces 4a, 4b, 4c and 4d are stated to be suitable for absorbing energy by deformation elastic, semi-elastic or plastic manner.It can be with Energy is absorbed by the deformation of frictional heat generation and/or the attached peripheral device or any other part of the helmet.According to Fig. 1 Embodiment, four fixing pieces 4a, 4b, 4c and 4d are Suspension 4a, 4b, 4c, the 4d with first part 8 and second part 9, Wherein the first part 8 of Suspension 4a, 4b, 4c, 4d is adapted to secure to attached peripheral device 3, and the second of Suspension 4a, 4b, 4c, 4d Part 9 is adapted to secure to energy-absorbing layer 2.
Sliding facilitator 5 can be low-friction material, and inhaling in face of energy for attached peripheral device 3 is arranged in the illustrated embodiment On the outside for receiving layer 2, however in other embodiments, what is be equally conceivable is that sliding facilitator 5 is arranged in energy-absorbing layer 2 On side.The low-friction material can be wax polymer (such as PTFE, PFA, FEP, PE and UHMWPE), or can infuse Enter the pulverulent material of lubricant.The low-friction material can be applied to any one in sliding facilitator and energy-absorbing layer or two A, in some embodiments, energy-absorbing layer itself is adapted to function as the effect of sliding facilitator and may include low-friction material.
Attached peripheral device can be by elasticity or polymer material (such as PC, ABS, PVC or PTFE) semi-elastic or natural fibre Tie up material (such as cotton yarn) manufacture.For example, the lid or mesh of fabric preparation may be constructed attached peripheral device.The lid can be equipped with Sliding facilitator, such as sheet of low-friction material.In some embodiments, the attached peripheral device itself is adapted to function as the effect of sliding facilitator simultaneously It and may include low-friction material.Fig. 1 further illustrates adjustment equipment 6, for adjusting the straight of headband for specific wearer Diameter.In other embodiments, the headband can be elastic head band, can remove adjustment equipment 6 in this case.
Fig. 2 shows the embodiments of the helmet similar with the helmet in Fig. 1, and the helmet is worn on wearer's head at this time.However In Fig. 2, attached peripheral device 3 is only fixed to energy-absorbing layer by two fixing pieces 4a, 4b, and described two fixing piece 4a, 4b are suitable In absorbing energy and power in a manner of elastic, semi-elastic or plasticity.The embodiment of Fig. 2 includes by being different from energy-absorbing layer 2 The hard external shell 1 of material manufacture.
Fig. 3 shows oblique impact I of the helmet of embodiment according to fig. 2 just by front, which generates the helmet Rotatory force causes energy-absorbing layer 2 to slide relative to attached peripheral device 3.Attached peripheral device 3 is fixed to energy by fixing piece 4a, 4b Absorbed layer 2.The fixing piece absorbs the rotatory force by elasticity or deformation semi-elastic.
Fig. 4 shows oblique impact I of the helmet of embodiment according to fig. 2 just by front, which generates the helmet Rotatory force causes energy-absorbing layer 2 to slide relative to attached peripheral device 3.It is solid that attached peripheral device 3 passes through fixing piece 4a, the 4b that can be split It is fixed to energy-absorbing layer 2, described fixing piece 4a, 4b by plastic deformation absorption rotational energy, and thus need after the blow into Row replacement.The combination of the embodiment of Fig. 3 and Fig. 4 is readily apparent that very much, that is, a part of fixing piece is split, with plasticity side Formula absorbs energy, and another part deformation of fixing piece and with elastic type absorbability.In combined embodiment it is contemplated that It is only that the part of plastic deformation needs to be replaced after the blow.
The top half of Fig. 5 shows the outside of the attached peripheral device 3 according to one embodiment, and wherein attached peripheral device 3 includes Headband 3a, back abdominal belt 3b and transverse belt 3c, headband 3a are suitable for surrounding the head of wearer, back abdominal belt 3b from the forehead of wearer to Up to the rear portion of wearer's head, and it is attached to headband 3a, transverse belt 3c reaches wearer's head from the left side of wearer's head Right side, and be attached to headband 3a.The component or a part of attached peripheral device 3 can be equipped with sliding facilitator.In the embodiment shown In, the material itself of attached peripheral device can play the role of sliding facilitator.It is also contemplated that providing addition for attached peripheral device 3 Low-friction material.
Fig. 5 further illustrates four fixing pieces 4a, 4b, 4c, 4d for being fixed to attached peripheral device 3.In other embodiments, Attached peripheral device 3 can be only headband 3a, or suitable for the complete lid of whole covering wearer's head upper section, or be used for Play the role of any other design for the attached peripheral device for being mounted on wearer's head.
The lower half portion of Fig. 5 shows the inside of attached peripheral device 3, discloses for adjusting headband 3a's for specific wearer Adjust equipment 6.In other embodiments, headband 3a can be elastic head band, in such a case, it is possible to remove adjustment equipment 6.
Fig. 6 shows the optional embodiment of fixing piece 4, and wherein the first part 8 of fixing piece 4 is fixed to attached peripheral device 3, And the second part 9 of fixing piece 4 is fixed to energy-absorbing layer 2 by adhesive.Fixing piece 4 be suitable for by elastic, semi-elastic or The deformation of plastic manner absorbs impact energy.
Fig. 7 shows the optional embodiment of fixing piece 4, and wherein the first part 8 of fixing piece 4 is fixed to attached peripheral device 3, And the second part 9 of fixing piece 4 is fixed to energy absorption by entering the mechanical fixing element 10 of the material of energy-absorbing layer 2 Layer 2.
Fig. 8 shows the optional embodiment of fixing piece 4, and wherein the first part 8 of fixing piece 4 is fixed to attached peripheral device 3, And the second part 9 of fixing piece 4 is fixed in energy-absorbing layer 2, such as by by fixed equipment in energy-absorbing layer 2 at Type.
Fig. 9 shows fixing piece 4 with sectional view and A-A view.According to this embodiment, attached peripheral device 3 is attached by fixing piece 4 It is connected to energy-absorbing layer 2, fixing piece 4 has be put into recess portion 12 to be suitable for second part 9 elastic, semi-elastic or plastic deformation, And it is connected to the first part 8 of attached peripheral device 3.The recess portion 12 includes flange 13, sufficiently large caused by fixing piece 4 Strain under when, the flange 13 is suitable for being bent with elastic, semi-elastic or plastic manner or deformation, so that second part 9 can be with Leave the recess portion 12.
Figure 10 shows the optional embodiment of fixing piece 4, and wherein the first part 8 of fixing piece 4 is fixed to attached peripheral device 3, and the second part 9 of fixing piece 4 is fixed to the inside of shell 1 all the way through energy-absorbing layer 2.This can for example pass through by Fixed equipment 4 is formed in energy absorption layer material 2 and is realized.It is also contemplated that by fixed equipment 4 by shell 1 Hole is put into (not shown) on the outside of the helmet.
Figure 11 shows one embodiment, and wherein attached peripheral device 3 is fixed to energy by film or sealing foam 24 in its periphery Measure absorbed layer 2, the film or sealing foam 24 can be elasticity or be suitable for plastic deformation.
Figure 12 shows one embodiment, and wherein attached peripheral device 3 is attached to energy-absorbing layer by mechanical fixing element 2, the mechanical fixing element includes mechanical engagement part 29, and the mechanical engagement part 29 is with similar self-locking with from lock strap 4 Function.
Figure 13 shows one embodiment, and wherein fixing piece is interlayer 27 interconnected, such as clamping cloth, may include Can fiber elastic, semi-elastic or plastic deformation, the fiber by attached peripheral device 3 be connected to energy-absorbing layer 2 and be suitable for Thus shear when applying shearing force absorbs rotational energy or power.
Figure 14 shows one embodiment, and wherein fixing piece includes magnetic mount 30, and may include two has suction The magnet of gravitation, for example, super magnet or a component include magnet and a component includes magnetic attraction material, such as iron.
Figure 15 shows one embodiment, and wherein fixing piece can be by being detachably connected the bullet of (so-called buckle fix) Property protrusion 28 and/or elastic recess portion 12 be attached again so that when sufficiently large strain is applied on the helmet (when impacting), Protrusion 28 is detached from from recess portion 12, and protrusion 28 can be again insertable into recess portion 12, to play a role again.It will also be appreciated that It is to buckle fixing piece to fix, and it is non-dismountable under sufficiently large strain and can not be attached again.
In the embodiment disclosed herein, the distance between energy-absorbing layer and attached peripheral device can become from not actually existing To have tangible distance, this is without prejudice to idea of the invention.
In the embodiment disclosed herein, more it is conceivable that fixing piece be it is elastomeric, inhale material with elastic type It receives energy but plastic deformation simultaneously partially occurs, without entirely ineffective.
In the embodiment for including multiple fixing pieces, more it is conceivable that one of fixing piece is main fixing piece, institute Main fixing piece is stated suitable for the plastic deformation under sufficiently large strain, and other fixing piece is suitable for pure elastic deformation.
Figure 16 is the table obtained by test, and the test is by the helmet (MIPS) and attached peripheral device and energy with sliding facilitator There is no the common helmet (original (Original)) of sliding layer to compare between absorbed layer.The test makes the dummy being equipped with Head freely falling body collides with the steel plate moved horizontally.Such oblique impact generates translatory acceleration and rotation accelerates The combination of degree, this is more than common test method (wherein the helmet collides in pure vertical direction and horizontal impact surface) Add true.The speed of highest 10m/s (36km/h) can be reached with vertical direction in the horizontal direction.In manikin head, there are one A system with nine accelerometers, this nine accelerometers are installed as measurement translatory acceleration and add around the rotation of all axis Speed.In current test, the helmet is fallen from 0.7m.This generates the vertical speed of 3.7m/s.Horizontal velocity is selected as 6.7m/s synthesizes the impact velocity and 29 degree of angle of attack of 7.7m/s (27.7km/h).
The test discloses the reduction for being transmitted to the translatory acceleration on head, and be transmitted to head rotation acceleration and The velocity of rotation on head is substantially reduced.
Figure 17 shows the helmet (MIPS_350 with sliding facilitator；MIPS_352) between attached peripheral device and manikin head There is no the common helmet (Org_349 of sliding layer；Org_351 the rotation acceleration) compared changes with time figure.
Figure 18 shows the helmet (MIPS_350 with sliding facilitator；MIPS_352) between attached peripheral device and manikin head There is no the common helmet (Org_349 of sliding layer；Org_351 the translatory acceleration) compared changes with time figure.
Note that perhaps a part of of a part of embodiment and any method or method can be with for any embodiment Any way combination.Whole examples herein should be considered as a part of general description, and therefore can be general in any way It is combined with including.

Claims (18)

1. a kind of helmet, comprising:
Energy-absorbing layer；
It is provided for for the helmet being attached to the attached peripheral device on the head of wearer；And
Sliding facilitator, the sliding facilitator are configured as allowing in impact process between the attached peripheral device and the energy-absorbing layer Sliding, wherein the sliding facilitator is that the low friction on the outside of the energy-absorbing layer of the attached peripheral device is arranged in Material, or the low-friction material on the inner surface of the attached peripheral device of the energy-absorbing layer is set.
2. the helmet according to claim 1, wherein the low-friction material is applied to the sliding facilitator.
3. the helmet according to claim 1, wherein the low-friction material is applied to the energy-absorbing layer.
4. the helmet according to claim 1, wherein the low-friction material is wax polymer or pulverulent material.
5. the helmet according to claim 4, wherein the wax polymer is PTFE, PFA, FEP or PE.
6. the helmet according to claim 4, wherein the pulverulent material is injected with lubricant.
7. the helmet according to claim 1, wherein the attached peripheral device includes for adjusting and the head of wearer is attached Clamp device.
8. the helmet according to claim 1 has the energy formed by polymer foams or honeycomb Absorbed layer.
9. a kind of method for manufacturing the helmet according to claim 1, comprising steps of
The energy-absorbing layer having been formed in mold is provided, and
Sliding facilitator is provided on the inside of the energy-absorbing layer.
10. a kind of helmet, comprising:
Energy-absorbing layer；
It is provided for for the helmet being attached to the attached peripheral device on the head of wearer；And
Sliding facilitator, the sliding facilitator are configured as allowing in impact process between the attached peripheral device and the energy-absorbing layer Sliding, wherein
The sliding facilitator is the low friction material in the inner surface of the attached peripheral device for being integrated to the energy-absorbing layer Material.
11. the helmet according to claim 10, wherein the low-friction material is ABS, PVC, PC, nylon, fibrous material Or wax polymer.
12. the helmet according to claim 10, wherein the low-friction material is the pulverulent material that can inject lubricant.
13. the helmet according to claim 11, wherein the wax polymer is PTFE, PFA, FEP, PE or UHMWPE.
14. the helmet according to claim 10, wherein the attached peripheral device is suitable for the top of whole covering wearer's head Part.
15. the helmet according to claim 14, wherein the attached peripheral device includes lid.
16. the helmet according to claim 10, wherein the attached peripheral device includes attached with wearer's head for adjusting The clamp device connect.
17. the helmet according to claim 10 has the energy formed by polymer foams or class honeycomb Measure absorbed layer.
18. a kind of method for manufacturing the helmet according to claim 10, comprising:
The energy-absorbing layer having been formed in mold is provided, and
Sliding facilitator is provided on the inside of the energy-absorbing layer；
Wherein the sliding facilitator is formed by low-friction material, and the sliding facilitator be integrated to the energy-absorbing layer in face of described In the inner surface of attached peripheral device.
CN201610084938.5A 2010-05-07 2011-05-03 The helmet with the sliding facilitator being arranged at energy-absorbing layer Active CN105661730B (en)

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SE1050458A SE534868C2 (en) 2010-05-07 2010-05-07 Helmet with sliding promoter provided at an energy absorbing bearing
US33381710P 2010-05-12 2010-05-12
US61/333,817 2010-05-12
CN201180022948.1A CN102905570B (en) 2010-05-07 2011-05-03 With the helmet of short sliding thing being arranged in energy-absorbing layer place

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